Skip to content

BrainBrowser Info

Flywheel has packaged a version of the BrainBrowser viewer which can be used to visualize brain surface objects. Use this viewer when viewing files of the 3D Object type - the default type applied to files uploaded the .obj extension.

BrainBrowser is a JavaScript library allowing for web-based, 2D and 3D visualization of neurological data. BrainBrowser uses open web-standard technologies such as HTML5, CSS, JavaScript and WebGL. The Surface Viewer uses the three.js library for 3D rendering.

For more information about BrainBrowser, visit the official site.

Installation

The BrainBrowser viewer is available as a Viewer Extension Application.

Manual updates required after site upgrades

Viewer Extension Applications are not updated automatically when your site is upgraded. If a new version of this viewer is released, you must manually update the registered URL to the latest version from the Release History table below. Before updating the site-level registration, you can register and test the new URL on a test project to verify it works as expected.

Register the Brain Browser Viewer Extension Application using these recommended settings.

Release History

Flywheel Version Date Reason for Change Install URL
Pre-20.3.0 — BrainBrowser was integrated into the Flywheel web app. Bundled (no CDN URL)
20.3.0 May 2025 Removed due to incompatibility with security changes in the Flywheel web app. Not available
20.5.0 July 2025 Re-released as a standalone Viewer Extension Application. https://cdn.flywheel.io/apps/brainbrowser-viewer/26a520f60625b0df95077e885490c610bd558569/index.html
21.4.0 February 2026 Routine update with dependency updates. https://cdn.flywheel.io/apps/brainbrowser-viewer/cc8c52f61f6f63bf21bb621cbf932039656a45a0/index.html